Well-casing collar



,lumv v.24: 1924 1,498,563@

J. A. MQRRISON ETAL .WELL CASING COLLARA Filed April 19. -1923 Wwwym Patented June 24, 1924. 1

UNITED STT-Ares PA-rajNjr' formen.

`.mss A. 'Monmsolm or sALr o To all whom Iit may BEEK, WYOMING, 'AND WILLIAM W. HARGROVE, or BoULnER, coLon.Ano

* WELL-Gesine COLL-An.

Aco/nfce the' man of the collar. or about a the Be it known that we, JEss A. MORRISON split portion thereof. l

and HARGROVE, citizens of the It 'is`contemplted, ofcourse, that an at- United States, residing at Salt Creek andftaehment such as fthe invention proposes 5 Boulder, in the counties of Natrona and -vshallbeof exceedingly simple construction,

Boulder and'States ofWyomingand ,Colo- Vsoas to enable itt`o be very cheaply manurado,have invented certain new and vuseful factured,1.and yet it is intended to be eX- 'Improvements in Well-'Casing Collars, of t-remely substantial so as to stand the wear which the following is a' specication.

This invention has to do with oil .well or operations.

and tear lincident to its use in welll drilling like-'well sinking operations', in thatit pro'- Y Referring to the drawings,'a well collar videsan attachment in the form of acas-pxsuch as our invention contemplates will .prefing collar susceptible of .being applied tem'-l erably consist of a, body A `that may be porarily to the upper end ofthe last length 'generally described as being -made from a or section of the casing, of a vstringof cas-` piece of sheet metal folded upon itself to ing, in such aman'nerlas to afford protecf-provid 'i tion for the upperl threaded end portion offfoldm,

the casing section. HVthenthe upper casingv 'or co er, section has beenlowered suliicientlyto enjmethod of'co'nstruction, our-"collar body ed side portions, and after the .20; able the :application ofanother such sectionf comprises an outermall 1 and an'inner4 wall.

the casingcollar attachment of the inven 2. The outer wall 1 may be characterized tion. will be displaced and applied `to the as aclamping element primarily, and the `11pper threaded fend portion of the newly innerwall 2 as a protective element, adapted lowered casing' section. 25

poses ofthe invent-ion, itJoeing-colnmenf be prevented, vif possible,

At the present` timev itV is customary to to lap over the thre tion'of the casing section, and prevent the resortto.amakeshiftexpedient for the -purlmutilation of these threads, something to practice' to bell outl'a lshort piece of cas-jfreasons. ing on the ground andi-employ it as a. sort- It is contemplated that ouncasing collar ofv makeshift method ofv :protecting the shall `be made of very. stout"sheet metal The aim for obvious adembeupper porv deV portions ofthe walls thereof, to reinforce a handy device, v.already constructed, and `the construction and enable it to withstand l such as may-.be readily andl the casing section, to aiford." L protection than Athe means' utilized at the ends',

`eater quickly'fappled th }wear; .and tear to the best advantage. ollar'isf?o f 'split formation, having itsl spaced apart, but connected by means "present time, also being,4 of coursea`vmore ofoll'standiiig.plate lugs '.3`to\receive a" bolt permanent and effec poses 1n view.

A full understanding tive means for t of the invention and itsv utility. will be had upon reference to. ithe'bolt 4,-iou rcasing collar .ina-y be' readily the following ydetailed. description, in con bolted and `irnly clamped in position on the upper end of the casing section, andas readily ',removed. At the *upper portion junction with the a in which; Figure l'is a View ccompanying drawings,-

illustrating the method thereof, the inner -wall 2 of the devicel will" .l of application of--th'e casing collar embody` beprovided with apertures 5 at suitably ing theinvention, it being understood that lspaced intervals.

These apertures afford the proportions. of the parts may be .difexits for mud or iforeign matterthat may ferent relatively than those illustrated.

` l Figure 2.is aperspective ing collar alone.

Figure 3 isa secti on taken about through the walls 1i and 2 are substan tially co-extensive, and the body A of the-` device are advantageously made of a single piece of metal. UAS the clamping eect of the device upon the casing sect-ion is derived from thel contraction of the outerwall 1 of 'the-same, resulting 1n practically a reduction in diameter of the inner wall,there is no liability of the scoring of the threads of will be used.' 4 Furthermore,

the casing section in firmly s'ecuringthe de-.

vice to the casing element;

It is to be understood that the devices of 'the invention are to be made in different sizes in order to accommodatefor the particular-size of casing sections on which-'1t the several pro- :portions of the; device'as previously noted invention,

bef/modified within the purview of the asrwe do notwish to be limited to the exact .construction disclosed in the drawings forming apart hereof'. Other simple clamping means might be utilized may than that illustrated, and in other particuving provided with apertures at inter-vals 'ther-em.

2. A casing collar for the. purpose de scribed, comprising a body composed of inner and outer walls td receive therebetween Va. threadedniember, the threads of which will be protectedbyone of said wallsfand means for securing the said body to such scribed, comprising a annular. form, the walls being spacedapart threaded member, the said walls forming'v continuations one of' the other and beingl bent into ring like formation so that their ends are juxtaposed, and the securingmeans comprising a connection vbetween said ends.

3. A casing collar for the purpose dedouble walled body of toreceive therein a 'threaded element so that one of the walls'may protect said element,

ing means for and means .for contracting said body whereby tosecure it firmly toa part tt* which it is applied.

4.. A casing collar annular form, the Wallsbeing spaced aparty to receive therein a threaded element so that one` of the Walls may protect 4said. element, and means for contracting said body whereby to secure it firmlyto a part to which it is for the-purpose de; scribed, comprising a doublewalled body lofV applied, c omprisingfa fastening means for drawingthe ends ofthe body toward'each other. r

5. A casing collar for the purpose de= scribed, comprising -a double walled body of annular form, the'walls'being spacedapartto receive therein a threaded element sothat one of the walls may protect said element, and means body whereby to secure it firmly'to a part to which it is applied, comprising a fasten- Aform spaced walls, and .then bent into ring l for contracting said= l drawing the ends of the body .toward each other, the. inner of said walls 'being formed with a series of apertures.

like forni so that its ends are juxtaposed, and i means for contracting .said casing .about a part received between the walls thereof..

1 7. As a new article of manufacture, a casing collar of theclass described, .comprising'a piecefofsheet metal folded-upon itself to form spaced walls, and then bent into ring like form so thatV its ends are juxtaposed, and a Clamping means for securing thel cas ing Ato a well casing section and applied to the outer `wall of the collar for drawing the ends of thecollar together. L 8. `A wellA 'easing collar of the class described, comprising a ring like 'body com posed of spaced walls -and having the ends thereof juxtaposed, 'with securing means between said 'ends and applied tothe.' outer wall of the'body for clamping the collar upon a. well casing section substantially as described. a i

.InV testimony whereof weaix our signa tures. v A

' JESS A.- MORRISON.

AWILLIAM W. HARGROVE. 

